Refrigerator



FIG. 1 is a perspective view of refrigerator showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a reference perspective view thereof showing the state that the drawers at the lower part of the refrigerator have been opened; and,

FIG. 9 is a reference perspective view thereof showing the state that the doors at the upper part of the refrigerator have been opened. 

CLAIM The ornamental design for a refrigerator, as shown and described. 